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The Cosmos Bipinnatus Antiquity (Cosmos bipinnatus) is a unique and compact annual variety celebrated for its remarkable color-changing blossoms. The flowers open in a deep, rich burgundy-crimson hue and gently mature over time into an antique rose, soft bronze, and salmon tone, creating a captivating multi-toned vintage effect on a single plant. Featuring fine, fern-like feathery foliage and a neat growth habit, it is an ideal choice for garden borders, patio containers, and small landscapes. Exceptionally easy to grow and heat-tolerant, this variety continuously produces blooms throughout the warm season while attracting butterflies, bees, and other beneficial pollinators.
It is widely recognized across different cultures as Sharada (Sanskrit: शारदा), Gul-e-ashrafi (Hindi: गुल-ए-अशरफी), Cosmos Puvvu (Telugu: కాస్మోస్ పువ్వు), Cosmos Poo (Tamil: காஸ்மோస్ பூ), Cosmos Poovu (Malayalam: കോസ്മോസ് പൂവ്), and Cosmos Huva (Kannada: ಕಾಸ್ಮೋಸ್ ಹೂವು). In English, it is commonly called the Antiquity Cosmos, Vintage Garden Cosmos, or Antique Rose Cosmos.
Best Sowing Time: Spring, Summer, and Monsoon
Temperature for Germination: 20–30°C
Soil: Well-draining, loamy or sandy soil; performs best in average soil rather than highly fertile soil
Sunlight: Full sun for optimal flower production and vibrant coloration
Watering: Moderate; keep soil moist until seedlings are established, then drought-tolerant
Spacing: 10–14 inches apart
Germination Time: 7–12 days
Support Needed: Generally self-supporting due to its compact habit, but low staking can be provided if grown in very windy areas
